Question : According to _____ law, the heat produced by an electric current is directly proportional to the resistance of the conductor, the square of the current and the time it flows.
Option 1: Hooke's
Option 2: Charles's
Option 3: Faraday's
Option 4: Joule's
Correct Answer: Joule's
Solution : The correct option is Joule's .
According to Joule's Law, the heat produced by an electric current (I) flowing through a conductor is directly proportional to the resistance of the conductor (R), the square of the current (I²), and the time (t) for which the current flows. Mathematically, Joule's Law is expressed as:
H = I 2 . R . t
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Question : Which law was discovered in 1660, which states that for relatively small deformations of an object, the displacement or size of the deformation is directly proportional to the deforming force or load?
Question : The potential difference V across the ends of a given metallic wire in an electric circuit is directly proportional to the current flowing through it, provided its temperature remains the same. This is called ___________ law.
Question : Which of the following scientists had discovered "the law of electric resistance"?
Question : Which law was formulated in 1662 and concluded that the product of pressure and volume remains almost constant?
Question : Which of the following laws states that with the temperature remaining constant, the volume of a given mass of a gas varies inversely with the pressure of the gas?
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